Cleanup inputs, outputs and proxy

Superceded by Client API.

Signed-off-by: Helder Correia <174525+helderco@users.noreply.github.com>

tests/plan/do/do.cue

@@ -0,0 +1,45 @@
+package main
+
+import (
+	"dagger.io/dagger"
+
+	"universe.dagger.io/alpine"
+	"universe.dagger.io/bash"
+)
+
+dagger.#Plan & {
+	client: filesystem: "./test_do": write: contents: actions.test.one.export.files["/output.txt"]
+
+	actions: {
+		image: alpine.#Build & {
+			packages: bash: {}
+		}
+
+		test: {
+			one: bash.#Run & {
+				input: image.output
+				script: contents: "echo Hello World! > /output.txt"
+				export: files: "/output.txt": string
+			}
+
+			two: bash.#Run & {
+				input: image.output
+				script: contents: "true"
+			}
+
+			three: bash.#Run & {
+				input: image.output
+				script: contents: "cat /one/output.txt"
+				mounts: output: {
+					contents: one.export.rootfs
+					dest:     "/one"
+				}
+			}
+		}
+
+		notMe: bash.#Run & {
+			input: image.output
+			script: contents: "false"
+		}
+	}
+}